Crustbuster drills feedback

I farm in NE CO, been using CB drills for better than 35 years. I currently have a 4745 all plant. I am mainly no till occasionally use limited tillage to smooth out rodent holes. I am happy with its performance in both situations. The one thing they sell is having 500 lbs of down pressure well they do if you keep the seed boxes half full or better. The drill does not weigh enough to produce 500 l...